You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to meet my parents in PHX on May 08. Can you please help me in booking flight ticket from DEN?

ASSISTANT: Sure, I am here to help you with that. Please, share me your departure date.

USER: My return is on May 10.

ASSISTANT: Let me know your source airport code, please.

USER: I have already mentioned above.

ASSISTANT: Sorry, do you have any connection limit for your journey?

USER: I prefer to travel in connecting flight.

ASSISTANT: May I know your other preferences, if any?

USER: I would like to fly in normal cost airline.

ASSISTANT: Please, provide me your name to proceed further for documentation purpose.

USER: Susan Campbell here.

ASSISTANT: Sorry for the inconvenience, we have not found any flights running on your desired dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.