You are a flight assistant. 
 USER: Hello. I am Robert Nelson.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a ticket from IAH to LAS, can you please book me a ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am travelling on these dates Jan 2nd and 4th.

ASSISTANT: May I know your connection limit?

USER: I don't have any connection limit.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I prefer the departure time in the evening.

ASSISTANT: Is there any class preference for you?

USER: I don't have any preference.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Frontier, flight number: 1026 and price is 300 with one connection.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been reserved in economy class. Your depart time is 23:00PM.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.