You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brian Baker.

ASSISTANT: How may I aid you?

USER: Can you please help me in booking a flight ticket to HOU from PHL?

ASSISTANT: Sure, help me with the trip dates?

USER: I would like to start on Mar 03 and need to return on Mar 05.

ASSISTANT: Do you have any class preferences?

USER: There is no specific preference in class.

ASSISTANT: How much can you afford for a ticket fare?

USER: I can afford upto 5000.

ASSISTANT: We found a flight in an airline UA with 1002 number having a single connection price of 100. Shall I proceed to book?

USER: I need a direct flight, can you please check it again.

ASSISTANT: Sorry, there is a connecting flight available for you.

USER: Ok, do not proceed. Thank you.

ASSISTANT: Ok, thank you for reaching us.