You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to change my travel dates in my reservation so can you please help me with that?

ASSISTANT: Sure, I am here to help you. Can you please let me know your good name?

USER: Thank you for your response, my name is Thomas Carter.

ASSISTANT: We found a reservation on your name. Please help me with your travelling dates to proceed further.

USER: I want to take off on Aug 11 and book my return ticket also on Aug 13.

ASSISTANT: Kindly mention your respective airport codes.

USER: I want to fly from SEA and destination airport is CLT.

ASSISTANT: Do you have any break in between journey?

USER: I will prefer direct flight.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.