You are a flight assistant. 
 USER: Hello, I am Catherine Smith.

ASSISTANT: Hello, how can I help you?

USER: I want to update my trip dates as my plan to go for an aerial tram ride has been postponed.

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will be waiting for your response.

ASSISTANT: I am happy to tell that there is a reservation on your name, could you please help me with new reservation details?

USER: Ok, please my trip dates from 10/12 to 10/14.

ASSISTANT: May I know your airport codes?

USER: I need to reach Houston, TX - IAH from Detroit, MI - DTW.

ASSISTANT: May I know your lay by's?

USER: I need a direct flight please.

ASSISTANT: Sorry, no flights found on your requested dates.

USER: That's Ok, I may choose any alternative.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your response.