You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, please tell me your name?

USER: I am Jacob Wilson.

ASSISTANT: Ok Wilson, what can I do for you?

USER: I am Planning to travel from PHX to AUS, can you help in booking a ticket?

ASSISTANT: Sure, I will help you. Please tell me the trip dates?

USER: My date of journey is on 12/26 to 12/08.

ASSISTANT: Ok, please wait a while. Sorry to inform you, there are no flights with the dates you planned.

USER: That's fine.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your help.