You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you right now?

USER: Can you help me in booking the flight ticket from LGA to PHX?

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your preferable dates of travelling?

USER: My preferable journey dates are Dec 29 and Dec 31.

ASSISTANT: May I know your name to book the flight ticket?

USER: My name is Emily Clark.

ASSISTANT: Are you ok with connecting flight?

USER: Yes, I am ok with connecting flight.

ASSISTANT: Do you have any more specifications?

USER: I prefer to return in evening flight.

ASSISTANT: Please be on hold to check the flights.

USER: Sure, I will wait for your information.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for approaching us, have a great day.