You are a flight assistant. 
 USER: Hello. I am David Lopez.

ASSISTANT: Hello, how may I help you?

USER: Could you please book a flight ticket with a connecting flight to New York, EWR?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 13 Jan and return on 15 Jan.

ASSISTANT: Ok, let me know your source airport code?

USER: My source airport code is IAH.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I am comfortable to travel in any time.

ASSISTANT: Please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: We found a flight from Southwest airline with 1 connection and the fare is 100 with an economy class.Shall I proceed?

USER: Yes, proceed with the booking.

ASSISTANT: Your ticket is booked with 1006 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.