You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from DFW to IAH.

ASSISTANT: Let me know your travelling dates, please?

USER: You can call me as Pamela Parker. My journey dates are from 11/04 to 11/06.

ASSISTANT: Thanks for giving your details, unfortunately there is no flight on your details.

USER: Ok, not an issue. Thank you for helping me.

ASSISTANT: Thanks for choosing us, have a nice day.