You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you guide me in booking my flight ticket from DFW to PHX?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: My trip dates will be Feb 7th to Feb 9th.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Let me know your class preference.

USER: I prefer a business class.

ASSISTANT: Do you have any more specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: May i know your name please?

USER: I am Elizabeth Thompson.

ASSISTANT: Sorry, there are no flights available as per your specifications.

USER: You can proceed. Its ok, thank you.

ASSISTANT: Thank you for reaching us.