You are a flight assistant. 
 USER: Hi. I am Debra Campbell.

ASSISTANT: Hello, how may I serve you?

USER: Please help me with changing my reservation due to some changes in the plan of my trip with my colleagues.

ASSISTANT: Ok, give me a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. There is a reservation found matching your name.

USER: Ok.

ASSISTANT: Please share your updated dates of journey.

USER: Sure, I have planned to travel on 12/30 and return on 01/01.

ASSISTANT: Let me know your journey airport codes.

USER: My airport codes are CA-SFO and TX-IAH.

ASSISTANT: Do you need a halt within your journey?

USER: I need a connecting flight.

ASSISTANT: Thank you for sharing your details.

USER: Ok.

ASSISTANT: We didn't found any connecting flights matching your requirements.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for opting us.