You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I have planned to book a ticket from IAH to IAD, can you assist me?

ASSISTANT: Sure, please let me know your connection limit.

USER: I need one connection between my trip.

ASSISTANT: When are you willing to travel?

USER: My preferred dates are Apr 14th and Apr 16th.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please let me know your name.

USER: Gregory King.

ASSISTANT: Ok, there is an American airline with flight number 1028 available for you on the dates you requested and the fare is 100. Is that fine?

USER: Proceed booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.