You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Frank Williams.

ASSISTANT: How may I help you?

USER: Can you please help me with flight ticket booking from Phoenix? As I need to attend a business meeting in Atlanta.

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: Sure, I need to travel on dates of 01/06 and 01/08.

ASSISTANT: Can I know your airport codes too?

USER: Sure, I would like to travel from PHX to ATL.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Oh! It is sad to hear. Anyway, I will choose another mode of transport this time.

ASSISTANT: Thank you for choosing us.

USER: Anyway, thank you for your time.