You are a flight assistant. 
 USER: Hello, I am Jerry Young.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket to attend Innovation festival at Houston. Can you help me for booking?

ASSISTANT: Sure, Please share me your travel dates.

USER: I will depart on 03/16 and return on 03/18.

ASSISTANT: Can I know your airport codes please?

USER: Sure, my nearest boarding airport is Chicago, IL - ORD. The Houston airport code is TX - IAH.

ASSISTANT: We found a connecting flight with the price 100, flight number is 100. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with Delta airlines.

USER: May I know the exact flight number?

ASSISTANT: And the flight number is 1025.

USER: Thanks for booking.

ASSISTANT: Thanks for choosing us to serve you.