You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I assist you?

USER: I am Nancy Lee. My family tour trip got postponed, so I want change an existing reservation.

ASSISTANT: Sure, please wait for a minute.

USER: Ok, I will wait.

ASSISTANT: We found a reservation on your name, please share your journey details.

USER: My source is Houston, TX - HOU and destination is New York, NY - LGA.

ASSISTANT: Your travelling dates please.

USER: I would like to fly on 11/06 and return on 11/08.

ASSISTANT: We found a flight with number 1010 and Spirit as airline. The cost of the ticket is 100.

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.