You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from DCA to LGA. Could you help me in booking?

ASSISTANT: Provide me with the travel dates please.

USER: My travelling dates are from Jan 09 - 11.

ASSISTANT: Is there any class preference?

USER: I prefer for economy class.

ASSISTANT: Is there any connection limit?

USER: Yes, I prefer connecting flight.

ASSISTANT: Are there any more preferences?

USER: No.

ASSISTANT: Let me know your name.

USER: Christine Lewis.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: American Airlines with flight 1017 is providing service on your route  with connecting flight and the cost is 100.

USER: Yes, please proceed.

ASSISTANT: Your tick is booked where departure DCA 16:00 hours Jan 09 and  arrival LGA 6:00 hours Jan 11.

USER: Thank you.

ASSISTANT: Thank you for reaching us.