You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you book a flight ticket from SFO to PHL?

ASSISTANT: Sure, please let us know the travel dates.

USER: Oct, 20 and Oct, 22 are my travel dates.

ASSISTANT: Could you let us know if you have any class preference?

USER: No, thanks.

ASSISTANT: May I know if you have any airline preference?

USER: No, thanks.

ASSISTANT: Is there any connection limit?

USER: I need to prefer single connection.

ASSISTANT: Are there any more preferences that you want to avail?

USER: No, thanks.

ASSISTANT: May I know your name please?

USER: Rachel Green here.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Delta Airlines with flight 1028 is providing service on your route with connecting flight and the cost is 100.

USER: Please go ahead.

ASSISTANT: Your ticket is booked where departure SFO 19:00 hours Oct 20 and arrival PHL 15:00 hours Oct 22.

USER: Thank you.

ASSISTANT: Thank you for reaching us.