You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Angela Garcia want to visit IAH, so can you book a flight from IAD?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: My travelling dates are 02/06 and 02/08.

ASSISTANT: Southwest airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Proceed with booking.

ASSISTANT: I have successfully booked your ticket with flight-1019, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.