You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you book a flight ticket for me in a normal-cost airline?

ASSISTANT: Sure, can I know your travelling dates?

USER: The travel dates are from June 29 to 01 July.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Patrick Roberts.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: The airport codes are from PHX to CLT.

ASSISTANT: Do you have any connection limit?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: That is it.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.