You are a flight assistant. 
 USER: Hi, I am Elizabeth Robinson.

ASSISTANT: Hello, how may I serve you?

USER: I want to head from Houston to narrate a story to an actor. Can you help me book a connecting flight?

ASSISTANT: Sure, may I know your airport codes?

USER: My source and destination airport codes are IAH and IAD.

ASSISTANT: On what dates will you be travelling?

USER: I need to depart on 08/01 and my return date will be on 08/03.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. There is an UA airline with flight number 1001 going on your way with the fare of 100.

USER: Every thing is fine, you can book the ticket with this airline.

ASSISTANT: your booking has been done.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.