You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Raymond Jones.

ASSISTANT: Let us know, What service are you expecting from us?

USER: Can you book a ticket from DFW to HOU, to visit the Houston Museum District which is located in Houston. Hoping that you are helping me out.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please mention, on what dates you are willing to travel & return?

USER: Sure, my travelling dates are 10/19 and 10/21.

ASSISTANT: Thanks for the details, please wait.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for choosing us.