You are a flight assistant. 
 USER: Hello, I am Stephanie Rodriguez.

ASSISTANT: Hello, how may I support you?

USER: Can you help me in booking a flight ticket from PHX to LAS?

ASSISTANT: Sure, may I know your fare limit for this booking?

USER: I can afford upto 500.

ASSISTANT: On what dates are you planning to make your trip?

USER: I want to fly on Mar 14 and return on Mar 16.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you need a low cost airline or normal cost airline?

USER: I am comfortable with any airline.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: Thanks for waiting, There are no flights available on the dates you requested.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.