You are a flight assistant. 
 USER: Hello. I am Rachel Jones.

ASSISTANT: Hello, how may I render you today?

USER: Can you please help me in booking a flight ticket from Las Vegas, LAS to Houston, IAH?

ASSISTANT: Sure, may I know on which dates would you like to book your flight ticket?

USER: My journey dates are from May 12 to May 14.

ASSISTANT: Please mention your connection limit.

USER: I need a break in between journey.

ASSISTANT: In which class you wish to travel?

USER: I prefer to travel in economy class.

ASSISTANT: Do you prefer any other specifications?

USER: My return time is morning.

ASSISTANT: Ok, please stand by, I will check with the airlines and revert to you.

USER: Sure.

ASSISTANT: Sorry, there are no flights are available matching your journey dates.

USER: That's ok, not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.