You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Patrick Davis.

ASSISTANT: How may I help you?

USER: I would like to visit Houston Museum of Natural Science in Houston, IAH. Can you please reserve me a flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My journey dates are, depart on 12/29 and arrival on 12/31.

ASSISTANT: Can I know your source airport code?

USER: My source point  is New York, LGA.

ASSISTANT: We found a flight from UA airline with single connection and price is 100. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket is booked and flight number is 1002.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.