You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Thomas from Oakland.

ASSISTANT: How can I assist you?

USER: I would like to visit Houston to meet my friend so please help me with flight ticket booking from Oakland.

ASSISTANT: Yes, I can help you. Can you tell me your travelling dates?

USER: Sure, I have planned my travel dates as 03/09 and 03/11.

ASSISTANT: Ok, could you tell me your nearest airport codes?

USER: Sure, I would like to travel from OAK to IAH as these are very much near to my travelling locations.

ASSISTANT: Give me a moment.

USER: Sure, take your time to check.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection.

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.