You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help do you require from us?

USER: I am planning for a holiday trip with my brother, can you please help me to book my flight ticket from MSP to IAH?

ASSISTANT: Sure, I am gleeful to assist you. May I know your preferred dates of journey?

USER: Thank you. I have to depart on Mar 14th and return back on Mar 16th.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I am looking for a direct flight.

ASSISTANT: Can I have your name please?

USER: My name is Sharon Martinez.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Oh! Not an issue. Anyway, thank you for the information.

ASSISTANT: Thank you for approaching us.