You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Ruth Roberts.

ASSISTANT: How may I assist you?

USER: I am looking for a flight from IAH to DCA, can you help me out?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My trip dates are from 03/27 till 03/29.

ASSISTANT: Wait for a while please.

USER: Sure.

ASSISTANT: UA airlines is available in your route with the ticket fare of 300, shall I proceed with the booking?

USER: Please proceed with it.

ASSISTANT: Your ticket is booked with the flight number 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.