You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to go from Houston to Oakland with the fare of 1000, can you please book me a ticket?

ASSISTANT: Ok, I will help you. Please share your journey dates.

USER: My journey dates are from 05/24 to 05/26.

ASSISTANT: May I know your name? To proceed further I need to now your airport codes.

USER: My name is Emily White. My preferable airport codes are from IAH to OAK.

ASSISTANT: There is a connected flight in Frontier airline matches the criteria. Details are: flight number- 1010, price- 200. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for booking.

ASSISTANT: Thanks for opting us.