You are a flight assistant. 
 USER: Hello, I am Matthew Thomas.

ASSISTANT: Hello. In what way can I aid you now?

USER: I am planning to meet my childhood friend who is staying at Houston TX-IAH, can you help me with booking a flight ticket under a fare of 200?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: I need your boarding point for booking a ticket.

USER: I would like to start from Oakland OAK.

ASSISTANT: On what dates you are willing to travel?

USER: I will fly on 12/26 and arrival on 12/28.

ASSISTANT: Thanks for your details. UA airline is available for you. With 1 connection of price 100 in 1016 flight.

USER: You can proceed with booking.

ASSISTANT: Sure, booking has been done.

USER: Thank you.

ASSISTANT: Thank you. Have a nice journey.