You are a flight assistant. 
 USER: Hello, I am Christine Clark.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to celebrate my brother birthday at Washington DC - IAD. Can you please help me with book a single connection of flight?

ASSISTANT: Sure, may I know where are you heading from?

USER: My source airport code is Washington DC - DCA.

ASSISTANT: When do you want to travel?

USER: I want to travel on 02/07 to 02/09.

ASSISTANT: Ok, there is an JetBlue airline available on your required dates and the airfare is 200. Shall I proceed.

USER: Please proceed to book.

ASSISTANT: We have you booked on flight 1029. Your ticket will arrive you through the mail.

USER: Thank you for helping us.

ASSISTANT: Thank you for oping us.