You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Betty Collins here. I would like to change my reservation which was done recently due to some health issues, can you please help me out with that?

ASSISTANT: Sure, I will help you change the flight ticket reservation. Wait for a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting Betty. Fortunately I have found your flight reservation. Please tell me your airport codes?

USER: Sure, my airport codes are IAH and MSP.

ASSISTANT: Now please tell me your travel dates?

USER: I would like to travel on dates 10/08 to 10/10.

ASSISTANT: Thanks for your patience. I have found UA airlines which flies with one connection.

USER: Ok, please confirm that flight ticket.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1016.

USER: Thank you for your service.

ASSISTANT: Thank you.