You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Timothy Johnson from Houston.

ASSISTANT: Yes.

USER: I would like to book a ticket to visit a new place at CLT. Can you please help me out to book a ticket from IAH?

ASSISTANT: May I know your travel dates?

USER: Thank you for your response, I want to take off on Feb 15 and please confirm my return ticket also on Feb 17.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.