You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Melissa Collins.

ASSISTANT: How may I aid you?

USER: I want to book a ticket from IAH to MCO, can you help me?

ASSISTANT: Sure, I am her to help you out. May I know your travelling dates please?

USER: My travel dates are 07/30 and 08/01.

ASSISTANT: Do you have any requirements?

USER: I want to travel in normal cost flight.

ASSISTANT: Melissa Collins, there are no flights available in your route.

USER: No problem, thanks for checking.

ASSISTANT: Than you for reaching us.