You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you help me with the flight ticket modification which my friend had recently booked?

ASSISTANT: Sure, we are glad to help you to change it.

USER: Ok, please check for the name Michael Smith.

ASSISTANT: Sure, please wait for a moment.

USER: Please make it fast.

ASSISTANT: We are glad to inform you that, we found a reservation on your name. Please share your planned journey dates.

USER: That is great, please modify the reservation to my planned dates which are Nov 27 and 29th respectively.

ASSISTANT: Sure, May I know your travelling airport codes?

USER: Ok, my origin airport code is SFO and destination is HOU.

ASSISTANT: Do you have any specifications for your journey?

USER: Ok, there is only one specification which is a flight with single connection limit.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: We found a flight in 1003 United Airline with a connected flight and the cost is 100.

USER: That is good, thank you for asking. Please book it.

ASSISTANT: Sure, your modifications has been done successfully in economy class.

USER: Ok, thank you for assisting me.

ASSISTANT: Thank you for reaching us.