You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you book a flight ticket by the name George Thomas?

ASSISTANT: Sure, May I know the journey codes?

USER: My journey codes are from IAH to IAD.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are from 12/07 to 12/09.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found direct flight from AA airline. Shall I proceed?

USER: Ok, Proceed.

ASSISTANT: Your ticket has been booked with the flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.