You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to change my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Carol Robinson.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, we found a reservation on your name. Please share your travelling dates.

USER: I am departing on Apr 25 and return on Apr 27.

ASSISTANT: Can I know your airport codes please?

USER: My departure airport is IAH and destination airport codes is HOU.

ASSISTANT: Please share your specifications.

USER: I prefer a direct flight.

ASSISTANT: Thank you for your details, sorry no we didn't find any flights with your details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.