You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Janet Carter here.

ASSISTANT: Janet Carter. How can I help you?

USER: I need to book my ticket from PHL to IAH. Can you please help me with booking?

ASSISTANT: I would like to know your journey dates?

USER: My planned journey dates are Dec 04 and Dec 06.

ASSISTANT: Do you have any class preferences?

USER: Yes, I need to book my ticket in economy class.

ASSISTANT: Want to board a direct or connecting flight.

USER: I need a connecting flight in my journey.

ASSISTANT: Are there any time concerns?

USER: I prefer to book my ticket with normal cost and my depart time should be in afternoon.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform that there are no flights on your route.

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

ASSISTANT: Thank you for reaching us.