You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Please reserve me a flight ticket from IAH to SFO.

ASSISTANT: Sure, may I know your planned trip dates?

USER: My planned journey dates are from July 4th to July 6th.

ASSISTANT: Is there any connection limit?

USER: Yes, I want a single connection in between my journey.

ASSISTANT: May I know your arrival and depart timings?

USER: I want to depart in the evening.

ASSISTANT: Please forward your good name.

USER: I am Larry Martin.

ASSISTANT: Do you have any other specifications other than these?

USER: No.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Sorry, there are no flights found on your specified trip dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.