You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Margaret Collins here.

ASSISTANT: How can I assist you today?

USER: I would like to book a flight ticket from PHX to SFO for a business conference, can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am willing to travel on 12/05 and please book my return ticket on 12/07.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, there is a flight with price 200 and the connections 0 is available.

USER: Sorry, I need a flight with 1 connection. Can you please check for it?

ASSISTANT: There is no flights available with connections 1.

USER: Oh! So sad to hear. Anyway, thank you for the information.

ASSISTANT: Welcome, have a great day.