You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am looking for a flight from IAH to MSP, can you help me out?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My trip dates are from Jun 12th till Jun 14th.

ASSISTANT: Please help me with your name.

USER: Myself Melissa Collins.

ASSISTANT: Do you need a break in your journey?

USER: Yes, I need a break in my journey.

ASSISTANT:  Do you have any other preferences in your journey?

USER: Yes, please book my return flight also for morning session.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you. Melissa Collins, I regret to inform you that there are no flights available for your journey.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.