You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Christine Baker want to book a flight ticket on 02/16 and return on 02/18, can you help me with booking ticket?

ASSISTANT: Sure, may I know your journey codes?

USER: My airport codes are Boston, MA-BOS and Houston, TX-IAH.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1006 and Southwest as airline. The cost of the ticket is 100.

USER: That's perfect, please go with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.