You are a flight assistant. 
 USER: Hello, I am Jennifer Williams.

ASSISTANT: Hello, how can I serve you?

USER: Can you help me to book a flight ticket from Philadelphia, PA-PHL to participate in hummer tour at Washington DC-IAD?

ASSISTANT: Sure, may I know your travelling dates please?

USER: 06/28 and 06/30 are my planned travelling dates.

ASSISTANT: Let me know if you need a lay by within your journey.

USER: I prefer a connecting flight.

ASSISTANT: Could you please share your price limit?

USER: I need the ticket with in the fare limit 1000.

ASSISTANT: Ok, please wait a while.

USER: Ok.

ASSISTANT: There is a Frontier airline available according to your requirements with flight number 1004 and price is 100.

USER: Ok, please reserve my seat with this airline.

ASSISTANT: Your reservation is done.

USER: Thanks for helping in booking.

ASSISTANT: Thank you for contacting us.