You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket from OAK to PHX?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Mar 30 and return on Apr 01.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any of the class.

ASSISTANT: Is there any connection limit?

USER: No.

ASSISTANT: Do you prefer any airline?

USER: I prefer normal cost.

ASSISTANT: May I know your name?

USER: Emma Thomas here.

ASSISTANT: We found 1011 American Airline with two connection and price of 200 in economy class, shall I proceed with booking?

USER: Please, proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.