How to filter the records by character in Airtable

Hi I am new to airtable database. I need a help for the following problem I have a number of cities in a MetroAreas Table.In a name field contains the cities i.e; Pheonix,Denver, Detriot and etc… I would like to filter the records like if you have to enter the “D” character and search then it should shows the Denver and Detroit as well as “P” it should shows the Pheonix. I tried to get a record if user enters the complete name of the city for following query

https://api.airtable.com/v0/BASE_NAME/Metro Areas?filterByFormula=OR(LOWER({Name})=LOWER(‘Phoenix’))

How to get the records by characters or substring of the city.Please help me out of this problem.

Thanks in advance.