You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I need to book a flight ticket from IAH to DCA, Can you please help me for booking?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I would like to travel on 09/09 to return on 09/11.

ASSISTANT: Ok, please let me know the airlines preference.

USER: No airline preference.

ASSISTANT: Do you prefer any specific class to travel?

USER: I am comfortable with any class.

ASSISTANT: Are you looking for any connecting flight?

USER: I need a connecting flight.

ASSISTANT: Can I have your good name please to proceed further?

USER: Rachel Martinez here.

ASSISTANT: JetBlue airlines running a direct flight in your route, is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: Ok Rachel Martinez, your ticket booking has done and the flight number is 1001.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us, have a great journey.