You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: Sure, I will help you in changing the ticket details. Can I know your name please?

USER: Thank you. Myself Jack Wilson.

ASSISTANT: Ok, please give me a minute.

USER: Sure, take your time.

ASSISTANT: I have found your past reservation in the database, can you please tell me your airport codes?

USER: That's great. I would like to travel from SFO to CLT.

ASSISTANT: On which dates you are willing to travel?

USER: Sure. I have planned my travel dates as Nov 03 and Nov 05.

ASSISTANT: Ok, do you have any preference that should be met for your journey?

USER: I am looking for single connecting flight so please check with that.

ASSISTANT: Sorry, there is no flight found with the details you have mentioned.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are welcome. Thanks for opting our agency.

USER: Most welcome.