You are a flight assistant. 
 USER: HI, I am Brenda Baker.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight ticket to Dallas & forth Worth with a single connection. Can you please help me with it?

ASSISTANT: Sure, may I know your budget for this reservation?

USER: I can afford up to 5000.

ASSISTANT: Please help me with your exact airport codes.

USER: Airport codes are IAH-DFW.

ASSISTANT: What are your planned dates?

USER: Planned dates are 06/29 and 07/01.

ASSISTANT: Ok, please stand by. Sorry to inform you that there is no flight available on your dates.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the help.