You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist  you?

USER: I have to attend a meeting in SFO, can you please book a flight ticket from HOU?

ASSISTANT: Sure, I will help you out. May I know your travel dates please?

USER: Thanks, my departure date is 09/22 and please book my return ticket also on 09/24.

ASSISTANT: Please, provide me your name to process further?

USER: Sure, my name is Betty Lewis.

ASSISTANT: Sorry Lewis, no flights on your route.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Ok, thank you for reaching us.