You are a flight assistant. 
 USER: Hello. I am Jacob Mitchell.

ASSISTANT: Hello, how may I abet you?

USER: I need to book a flight ticket from DFW to IAH, Can you please help me for booking?

ASSISTANT: Please let me know your journey dates.

USER: I would like to travel on 12/05 to 12/07.

ASSISTANT: Thanks for giving your essentials. There are no flights available on your required dates.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.