You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I am a singer, I would like to attend a singing competition. Could you please help me in booking a ticket?

ASSISTANT: Can you please tell me your planning dates?

USER: Sure, I planned to travel on 08/09 and return on 08/11.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from SFO to IAD.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: I found a flight for you with flight number 1010 and airline is UA. Can I proceed?

USER: May I know the connection limit?

ASSISTANT: Sure, the connection limit is 1.

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.