You are a flight assistant. 
 USER: Hello. I am Ryan Walker from Houston.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am planning to book a flight on July 12th to visit my Hometown at Oakland, will you help me in booking a flight?

ASSISTANT: Sure, Let me know your return date.

USER: My return date is 14th of July.

ASSISTANT: Ok, please help me with your journey airport codes.

USER: My airport codes are IAH - OAK.

ASSISTANT: Ok, may I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, How much do you want to spend on your ticket?

USER: I can spend up to 500.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight in 1017 Frontier airline with a fare of 200 in economy class. Can I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Sure, your booking has been done with a halt.

USER: Thank you.

ASSISTANT: Thank you for choosing us.