You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Edwards Thompson here. Can you help me to find a flight from DCA to IAH?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are 03/11 and 03/13.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Delta airline with price 100, can I book it?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with flight number 1007.

USER: Thanks for your help.

ASSISTANT: Thank you for approaching us.