You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Scott.

ASSISTANT: How may I help you today?

USER: I would like to travel from PHX to PHL to meet my parents, can you please help me in booking?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please can you mention your journey dates to proceed further?

USER: I am departing on 03/29 and return on 03/31.

ASSISTANT: Wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no flight found.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing my agency.