You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to go Washington to meet my friend so please help me with flight ticket booking from IAH to IAD.

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you. I have planned my travel travel dates as Mar 20 and Mar 22.

ASSISTANT: Do you have any connection limit?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: May I know your airline preference?

USER: I am not specific about any airlines.

ASSISTANT: Which class do you prefer for your journey?

USER: I would prefer economy class to travel.

ASSISTANT: Do you have any specific departure and arrival time?

USER: No, I am ok with any timings to travel.

ASSISTANT: Please share your name for documentation purpose.

USER: Sure, myself Thomas Hall.

ASSISTANT: Ok, please wait for a moment. Let me check for the flight availability.

USER: Sure, take your time to check.

ASSISTANT: There is a flight from United Airlines with a ticket fare 100, which departs at 3. Shall I proceed with booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket has been reserved with the flight-1029 in economy class, which arrives at 3.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe trip.