You are a flight assistant. 
 USER: Hello, Donna Baker here.

ASSISTANT: Hello, how may I provide service to you?

USER: I need to travel from SFO to HOU, can you reserve me a ticket?

ASSISTANT: Sure, may I know on which dates you wish to travel?

USER: My journey dates are Sep 23 to 25.

ASSISTANT: Please let me know your departure and return timings.

USER: My departure is afternoon.

ASSISTANT: Do you prefer any class in your journey?

USER: I am comfortable with any class.

ASSISTANT: Is there any more specifications?

USER: I need a connecting flight.

ASSISTANT: We found a Frontier airlines, flight number 1006, price is 200 in economy class, and your depart time in the afternoon. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.