You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: I need to book a flight ticket from IAH to LAS, 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 06/29 to return on 07/01.

ASSISTANT: Ok, please let me know your  preferable timings of your  journey.

USER: No.

ASSISTANT: Do you  have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Can I have your good name please?

USER: Sarah Davis here.

ASSISTANT: Frontier airlines running a flight in your  route with connection 1 and the ticket  fare is 100 in economy class. Shall I proceed with booking?

USER: Ok, proceed for booking.

ASSISTANT: Ok, your  ticket booking has done and the flight number is 1002.

USER: Thanks for your information.

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